Used mine in late October when temps dipped into the 30s, and it held up better than I expected. You can still feel a bit of chill from the ground, but nothing too uncomfortable, especially if you add a thin blanket on top. Honestly, for the weight and how fast it packs up, it's a win. Curious if anyone's tested it during a frosty night or snowfall—does it hold up then, or do you need more layers?